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Reliable ADSL SOHO router with 802.11g support. Provides stable and secure wireless connectivity for small business environments.
CISCO857W-G-A-K9
ADSL SOHO Router with 802.11g FCC Compliant
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CISCO857W-G-A-K9
- Description:
- ADSL SOHO Router with 802.11g FCC Compliant
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- Brand:
- Cisco
- GTIN:
- 882658445767
- Condition:
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CISCO857W-G-A-K9 Overview
Overview of CISCO857W-G-A-K9
CISCO857W-G-A-K9 is a fixed architecture integrated services router designed to deliver robust performance with dual power options and versatile WAN/LAN interfaces. It features integrated services including voice, video, and WAN optimization capabilities with built‑in VPN functionality, enabling high throughput and reliable redundancy for secure enterprise edge deployments.
This router offers modular interface support with two WAN ports and four LAN ports, employing 10/100 Ethernet technology alongside dual‐band Wi‑Fi 4 connectivity. Optimized for demanding use cases, it balances comprehensive routing protocols, firewall features, and QoS capabilities to support business, enterprise, and branch applications with high availability and streamlined remote management.
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CISCO857W-G-A-K9 Specifications
- Product Type
- Enterprise Router
- VPN Support
- IPSec / SSL VPN / DMVPN
- Power Source
- AC Power Supply / DC Power Supply / Redundant
- Routing Protocols
- OSPF / BGP / EIGRP / RIP / Static Routing
- Broadband
- N/A
- Architecture
- Fixed
- WAN Configuration
- Dual WAN
- WAN Ports
- 2 WAN
- LAN Ports
- 4 LAN Ports
- Ethernet Technology
- 10/100
- Wi-Fi Standard
- WiFi 4 / Dual band
- Connectivity Type
- Wired / Wireless / Ethernet
- Network Protocols
- IPv4, IPv6, TCP, UDP, ICMP
- Remote Management
- CLI, SNMP, Telnet, SSH
- Compliance Standards
- FCC / CE / UL
- Wireless Support
- Yes
- Speed/Capacity
- N/A
- Firewall Features
- Yes
- Features
- VPN / VoIP / IPv6 Compatible / Firewall
- Use Case
- Enterprise
- Management
- Managed
- Form Factor
- Desktop
- Integrated Services
- Voice / Video / WAN Optimization
- High Availability Support
- Supported
- Safety
- N/A
- EMC
- N/A
- Telecom
- N/A
- Throughput Capacity
- 100 Mbps
- QoS Features
- Supported
- Built-in Security Features
- Firewall / Intrusion Prevention / Malware Protection
- Expansion Slots
- N/A
- Modular Slots Available
- N/A
- Stacking Capability
- No
- 5G Support
- No
- Memory
- 256 MB
- Flash Memory
- 128 MB
- Interface Ports
- RJ-45 / SFP
- Power
- 65W
- Device Type
- Router
- Product Name
- CISCO857W-G-A-K9 Integrated Services Router
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
CISCO857W-G-A-K9 Use Case
Secure ADSL VPN Connectivity for Remote Branch Office
A rural legal practice with only ADSL access deploys the CISCO857W-G-A-K9-ADSL SOHO Router with 802.11g FCC Compliant to establish an IPsec VPN tunnel to its headquarters. By leveraging integrated 256-bit AES encryption, built-in firewall, and reliable ADSL throughput up to 8 Mbps, the firm secures client data in transit, minimizes downtime, and streamlines remote management—ensuring compliance with industry regulations and uninterrupted access to case files.
Guest Wireless Segmentation for Boutique Hotel
A 20-room boutique hotel implements the CISCO857W-G-A-K9-ADSL SOHO Router with 802.11g FCC Compliant to deliver a high-performance guest Wi-Fi network alongside an isolated management VLAN. With FCC-compliant 802.11g wireless, customizable SSIDs, and advanced QoS, the property enhances guest satisfaction with seamless internet access while protecting payment systems and back-office applications—achieving PCI compliance and reducing support calls by 50%.
Integrated VoIP and Data Platform for Financial Advisory Firm
A small financial advisory firm uses the CISCO857W-G-A-K9-ADSL SOHO Router with 802.11g FCC Compliant to converge voice and data over a single ADSL link. The router’s dual FXO/FXS ports, traffic-prioritization QoS, and FCC-approved 802.11g Wi-Fi deliver crystal-clear VoIP calls and secure client portal access. This integrated solution cuts telecom costs by 40%, boosts call quality, and ensures business continuity with built-in failover and remote diagnostics.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| CISCO857W-G-A-K9 |  CISCO877-K9 |  CISCO887VG-K9 |  CISCO861W-GN-A-K9 |  C881SRSTW-GN-A-K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Fixed |
| Broadband | N/A | N/A | DSL | N/A | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention | Firewall / Intrusion Prevention |
| Compliance Standards | FCC / CE / UL | FCC, CE | FCC, CE | FCC / CE | FCC / CE |
| Connectivity Type | Wired / Wireless / Ethernet | Wired | Wired | Wired | Wired / Wireless / Ethernet |
| Depth | N/A | N/A | 6.5 inches | N/A | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | FCC, CE | N/A | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100 | 10/100 |
| Expansion Slots | N/A | N/A | NIM | EHWIC | N/A |
| Features | VPN / VoIP / IPv6 Compatible / Firewall | VPN, Firewall, Routing, Switching, NAT | VPN / Voice / Firewall / IPv6 Compatible | VPN / IPv6 Compatible / Firewall | VPN / Firewall / IPv6 Compatible / NAT |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 128 MB | 32 MB | 128 MB | 128 MB | 128 MB |
| Form Factor | Desktop | Desktop | Desktop | Desktop | Desktop |
| Height | N/A | N/A | 1.7 inches | N/A | N/A |
| High Availability Support | Supported | Not Supported | Supported | Supported | Not Supported |
| Integrated Services | Voice / Video / WAN Optimization | Voice, VPN, Firewall | Voice / Video / WAN Optimization | Voice / Video | Voice / Video / N/A |
| Interface Ports | RJ-45 / SFP | RJ-45 | RJ-45 | RJ-45 | RJ-45 / Combo Ports |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 128 MB | 256 MB | 512 MB | 256 MB |
| Modular Slots Available | N/A | N/A | 1 Slot | N/A | N/A |
| Network Protocols | IPv4, IPv6, TCP, UDP, ICMP | IP, ICMP, TCP, UDP | IPv4, IPv6 | IPv4, IPv6 | IPv4 / IPv6 |
| Power | 65W | 65 Watt | 60 Watt | 20 W | 25 W |
| Power Source | AC Power Supply / DC Power Supply / Redundant | AC Power Supply | AC Power Supply / Redundant | AC Power Supply | AC Power Supply / Redundant |
| Product Name | CISCO857W-G-A-K9 Integrated Services Router | Cisco 877-K9 | CISCO887VG-K9 Integrated Services Router | Cisco 861W Integrated Services Router | Cisco 881SRSTW-GN-A-K9 Integrated Services Router |
| Product Type | Enterprise Router | Enterprise Router | Integrated Services Router | Enterprise Router | Integrated Services Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | CLI, SNMP, Telnet, SSH | CLI, SNMP | CLI, SNMP, Cisco SDM | SSH, Telnet, SNMP, HTTP/HTTPS | SSH / Telnet / SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | Static Routing / RIP / OSPF / EIGRP | OSPF / RIP / EIGRP / BGP / Static Routing | OSPF / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | UL, CE | N/A | N/A |
| Speed/Capacity | N/A | Fast Ethernet | Gigabit | N/A | Fast Ethernet |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 100 Mbps | Up to 25 Mbps | 0.025 Gbps | N/A | 150 Mbps |
| Use Case | Enterprise | Small Business / Branch Office | Enterprise | Small Business | Business / Small Business / Enterprise |
| VPN Support | IPSec / SSL VPN / DMVPN | IPSec | IPSec VPN | IPSec / SSL VPN / N/A | IPSec / SSL VPN / N/A |
| WAN Configuration | Dual WAN | WAN | Dual WAN | WAN | Dual WAN |
| WAN Ports | 2 WAN | 1 WAN | 2 WAN | 1 WAN | 2 WAN |
| Weight | N/A | N/A | 11 lbs | N/A | N/A |
| Wi-Fi Standard | WiFi 4 / Dual band | N/A | N/A | WiFi 2 | WiFi 4 |
| Width | N/A | N/A | 7.3 inches | N/A | N/A |
| Wireless Support | Yes | No | No | Yes | Yes |
Reviews & Ratings
S
Sophia Turner
5
Cisco 857W-G-A-K9 delivers consistent wireless and ADSL performance. Easy to deploy and maintain.
E
Ethan Bell
5
Handles small office traffic efficiently. Wireless coverage is strong and reliable.
O
Olivia Morgan
5
Durable and predictable router. Ensures secure connectivity and minimal downtime.
L
Lucas Foster
4
Stable ADSL and wireless performance. Cisco quality ensures smooth operations for SOHO networks.
Questions & Answers
What is the Cisco 857W-G-A-K9 router?
The Cisco 857W-G-A-K9 is an ADSL SOHO router with integrated 802.11g wireless functionality, designed for small office and home office environments and compliant with FCC regulations.
Which wireless standard does the Cisco 857W-G-A-K9 support?
The Cisco 857W-G-A-K9 supports the IEEE 802.11g standard, delivering up to 54 Mbps of wireless throughput for reliable Wi-Fi connectivity.
Is the Cisco 857W-G-A-K9 FCC compliant?
Yes, the Cisco 857W-G-A-K9 meets FCC Part 15 requirements for unlicensed wireless devices, ensuring legal operation in the United States.
What ADSL standards are supported by the Cisco 857W-G-A-K9?
The Cisco 857W-G-A-K9 supports ADSL Annex A, B, J, and L, offering downstream rates up to 8 Mbps and upstream rates up to 832 Kbps.
How many Ethernet ports does the Cisco 857W-G-A-K9 offer?
The Cisco 857W-G-A-K9 features four 10/100 Ethernet LAN ports and one 10/100 Ethernet WAN port for versatile wired connectivity.
Does the Cisco 857W-G-A-K9 support VPN connections?
Yes, the Cisco 857W-G-A-K9 provides hardware-accelerated IPsec VPN for up to 10 simultaneous tunnels, enabling secure remote access.
What security features are included on the Cisco 857W-G-A-K9?
The Cisco 857W-G-A-K9 offers Stateful Packet Inspection firewall, WPA/WPA2 encryption, MAC filtering, and access control lists for robust network protection.
How do I configure the Cisco 857W-G-A-K9 router?
You can configure the Cisco 857W-G-A-K9 via its web-based GUI or Cisco IOS CLI using a console cable, following the quick start guide for step-by-step instructions.
Does the Cisco 857W-G-A-K9 support Quality of Service (QoS)?
Yes, the Cisco 857W-G-A-K9 includes advanced QoS features such as Class-Based Weighted Fair Queuing (CBWFQ) and traffic shaping to prioritize voice and video.
Can I use the Cisco 857W-G-A-K9 for VoIP applications?
Yes, the Cisco 857W-G-A-K9 supports voice traffic prioritization through QoS and can be paired with Cisco SPA phones for VoIP deployments.
What is the maximum wireless speed of the Cisco 857W-G-A-K9?
The Cisco 857W-G-A-K9 delivers up to 54 Mbps on 2.4 GHz 802.11g, ideal for web browsing, email, and light multimedia streaming.
Is the Cisco 857W-G-A-K9 suitable for a small office?
Yes, the Cisco 857W-G-A-K9 is optimized for small office and home office networks, supporting up to 25 users with secure ADSL and Wi-Fi access.
How do I update the firmware on the Cisco 857W-G-A-K9?
Firmware updates are applied via the web GUI under Administration > Firmware Upgrade; download the latest Cisco IOS image and follow the prompts.
What power requirements does the Cisco 857W-G-A-K9 have?
The Cisco 857W-G-A-K9 uses the included 12 V DC, 1 A power adapter and consumes less than 12 W under typical operating conditions.
What is the warranty period for the Cisco 857W-G-A-K9?
Cisco offers a limited lifetime hardware warranty for the 857W-G-A-K9, covering manufacturing defects and providing next-business-day replacement.
Where can I get technical support for the Cisco 857W-G-A-K9?
Cisco technical support is available online through the Cisco Support Community and TAC, or via phone with a valid service contract.